40420048

素因数分解:

$2^4\times {\mathrm{311}}^1\times {\mathrm{8123}}^1$

素因数の和:8442

約数の個数: 20

約数和(自身を含む): 78575328

約数和(自身を除く): 38155280

約数列:

[1, 2, 4, 8, 16, 311, 622, 1244, 2488, 4976, 8123, 16246, 32492, 64984, 129968, 2526253, 5052506, 10105012, 20210024, 40420048]

約数ペア:

[(1, 40420048), (2, 20210024), (4, 10105012), (8, 5052506), (16, 2526253), (311, 129968), (622, 64984), (1244, 32492), (2488, 16246), (4976, 8123)]